21. (i) All legislative powers herein granted shall be vested in the Federal Legislature.
(2) The Federal Legislature shall have power to make laws —
(a) for the peace, order and good government of the Hindus than free State in relation to all matters not coming in the classes of subjects by Schedule——to this Act assigned to the Provincial Legislatures;
(b) for the nationals and servants within all parts of Hindusthan, as well as those without and beyond Hindusthan
(c) for the government officers, soldiers airmen, navymen, mariners, followers and others in its military
(3) In cases of great emergency and in matters of dispute between Provinces, the Federal Government and the Federal Legislature shall have all the powers necessary and ancillary including the power to suspend or annul the acts, executive and legislative, of a Provincial Government.
(4) No court shall have jurisdiction in eases where the Federal Government or the Federal Legislature has acted in the exercise of the powers under the preceding sub-section.